TP-Link Tapo C200 improper authentication

Summaryinfo

A vulnerability has been found in TP-Link Tapo C200 and classified as very critical. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in improper authentication. This vulnerability was named CVE-2026-15315. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in TP-Link Tapo C200 (the affected version unknown). It has been classified as very critical. This affects an unknown part. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Tapo C200 v5 contains an improper authentication vulnerability within the login authentication verification module. An attacker on the local network can exploit weaknesses in challenge parameter validation to bypass normal authentication controls and obtain administrative session tokens. Successful exploitation may allow an attacker to subsequently execute privileged management actions, enable unauthorized administrative access and temporary disruption of device services, resulting in a denial-of-service (DoS) condition.

The advisory is shared at tp-link.com. This vulnerability is uniquely identified as CVE-2026-15315 since 07/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/19/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• TP-Link

Name

• Tapo C200

License

• commercial

Website

• Vendor: https://www.tp-link.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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